In this exclusive sneak peek from the episode “Bob and Carol and Cat and Vincent” (a title perhaps lost on the dewy CW demo), Vincent and Catherine are investigating a mysterious and improbably hospital murder when they bump up against two married FBI agents (played by guest stars Alan Van Sprang and Natasha Henstridge).

“At first,” Jay Ryan told TVLine, “Vincent and Catherine think, ‘We have found our other couple! That we can hang with and be open with!,’ because we’re sort of in the same line of work. But there’s always a twist on Beauty and the Beast.”